Diseased cow heads(replacing the BFG9000) now bounce off walls, have a limited throw distance and can injure the player. In addition, various modifications to how weapons function have been made. Graphics are mostly taken from Postal 2 screenshots, with the color depth dropped to the Doom palette. The only thing not replaced is Doomguy's face in the status bar, encouraging the player to minimize the status bar. Monsters and levels are left alone, with all weapons and items(excluding keys) replaced. The Doomguy is replaced by Postal Dude, including numerous quotes taken from Rick Hunter's vocal recordings from Postal 2, as well as weapon sound effects. Storywise, the game takes place after Postal Dude took a hit off a crack pipe, leading to a massive demonic hallucination.
The mod requires Doom 2 WAD 1.9 to run multiplayer in ZDaemon. It is a weapons conversion of Doom 2, replacing all weapons and the player with elements from the Running With Scissors games Postal 2 and Postal 2: Apocalypse Weekend. Postal 2 Meets Doom(in the form of weapons) is a PWAD mod for ZDoom(and compatible with ZDaemon) released by modder Bazooka on October 25th, 2006.